package collection;

import java.util.ArrayList;
import java.util.Collection;

public class CollectionOperDemo {
    public static void main(String[] args) {
        Collection c1=new ArrayList();
        c1.add("java");
        c1.add("c++");
        c1.add(".net");
        System.out.println("c1:"+c1);
        Collection c2=new ArrayList();
        c2.add("andraid");
        c2.add("ios");
        c2.add("java");
        System.out.println("c2:"+c2);

        c1.addAll(c2);
        System.out.println("c1:"+c1);
        System.out.println("c2:"+c2);

        Collection c3=new ArrayList();
        c3.add("c++");
        c3.add("ios");
        c3.add("java");
        boolean contains=c1.containsAll(c3);
        System.out.println("是否包含"+contains);

        /*c1.retainAll(c3);
        System.out.println("c1:"+c1);
        System.out.println("c3:"+c3);
         */


        c1.removeAll(c3);
        System.out.println("c1"+c1);
        System.out.println("c3"+c3);
    }
}
